<!--考生答题界面-->
<template>

  <div id="answer">
    <!--顶部信息栏-->
    <div class="top">
      <div v-show="ImgFlag" class="publish">
        <video ref="video"></video>
        <canvas
          style="display:none"
          id="canvasCamera"
        ></canvas>

      </div>
      <ul class="item">

        <li><i
            class="iconfont icon-menufold icon20"
            ref="toggle"
            @click="slider_flag = !slider_flag"
          ></i></li>
        <li>{{examData.type}}-{{examData.source}}</li>
        <li
          style="marginRight:30px;cursor: pointer;"
          @mouseenter="ImgFlag=true"
          @mouseleave="ImgFlag=false"
        ><i class="el-icon-camera"></i>
        </li>

        <li @click="flag = !flag">
          <i class="iconfont icon-user icon20"></i>
          <div
            class="msg"
            v-if="flag"
            @click="flag = !flag"
          >
            <p>姓名：{{userInfo.name}}</p>
            <p>准考证号: {{userInfo.id}}</p>
          </div>
        </li>

        <li><i class="iconfont icon-arrLeft icon20"></i></li>
      </ul>
    </div>
    <div class="flexarea">
      <!--左边题目编号区-->
      <transition name="slider-fade">
        <div
          class="left"
          v-if="slider_flag"
        >
          <ul class="l-top">
            <li>
              <a href="javascript:;"></a>
              <span>当前</span>
            </li>
            <li>
              <a href="javascript:;"></a>
              <span>未答</span>
            </li>
            <li>
              <a href="javascript:;"></a>
              <span>已答</span>
            </li>
            <li>
              <a href="javascript:;"></a>
              <span>标记</span>
            </li>
          </ul>
          <div class="l-bottom">
            <div class="item">
              <p>选择题部分</p>
              <ul>
                <li
                  v-for="(list, index1) in topic[1]"
                  :key="index1"
                >
                  <a
                    href="javascript:;"
                    @click="change(index1)"
                    :class="{'border': index == index1 && currentType == 1,'bg': bg_flag && topic[1][index1].isClick == true}"
                  >
                    <span :class="{'mark': topic[1][index1].isMark == true}"></span>
                    {{index1+1}}
                  </a>
                </li>
              </ul>
            </div>
            <div class="item">
              <p>填空题部分</p>
              <ul>
                <li
                  v-for="(list, index2) in topic[2]"
                  :key="index2"
                >
                  <a
                    href="javascript:;"
                    @click="fill(index2)"
                    :class="{'border': index == index2 && currentType == 2,'bg': fillAnswer[index2][3] == true}"
                  ><span :class="{'mark': topic[2][index2].isMark == true}"></span>{{topicCount[0]+index2+1}}</a>
                </li>
              </ul>
            </div>
            <div class="item">
              <p>判断题部分</p>
              <ul>
                <li
                  v-for="(list, index3) in topic[3]"
                  :key="index3"
                >
                  <a
                    href="javascript:;"
                    @click="judge(index3)"
                    :class="{'border': index == index3 && currentType == 3,'bg': bg_flag && topic[3][index3].isClick == true}"
                  ><span :class="{'mark': topic[3][index3].isMark == true}"></span>{{topicCount[0]+topicCount[1]+index3+1}}</a>
                </li>
              </ul>
            </div>
            <div
              class="final"
              @click="commit()"
            >结束考试</div>
          </div>
        </div>
      </transition>
      <!--右边选择答题区-->
      <transition name="slider-fade">
        <div class="right">
          <div class="title">
            <p>{{title}}</p>
            <i class="iconfont icon-right auto-right"></i>
            <span>全卷共{{topicCount[0] + topicCount[1] + topicCount[2]}}题 <i class="iconfont icon-time"></i>倒计时：<b>{{time}}</b>分钟</span>
          </div>
          <div class="content">
            <p class="topic"><span class="number">{{number}}</span>{{showQuestion}}</p>
            <div v-if="currentType == 1">
              <el-radio-group
                v-model="radio[index]"
                @change="getChangeLabel"
              >
                <el-radio :label="1">{{showAnswer.answerA}}</el-radio>
                <el-radio :label="2">{{showAnswer.answerB}}</el-radio>
                <el-radio :label="3">{{showAnswer.answerC}}</el-radio>
                <el-radio :label="4">{{showAnswer.answerD}}</el-radio>
              </el-radio-group>
              <div
                class="analysis"
                v-if="isPractice"
              >
                <ul>
                  <li> <el-tag type="success">正确姿势：</el-tag><span class="right">{{reduceAnswer.rightAnswer}}</span></li>
                  <li><el-tag>题目解析：</el-tag></li>
                  <li>{{reduceAnswer.analysis == null ? '暂无解析': reduceAnswer.analysis}}</li>
                </ul>
              </div>
            </div>
            <div
              class="fill"
              v-if="currentType == 2"
            >
              <div
                v-for="(item,currentIndex) in part"
                :key="currentIndex"
              >
                <el-input
                  placeholder="请填在此处"
                  v-model="fillAnswer[index][currentIndex]"
                  clearable
                  @blur="fillBG"
                >
                </el-input>
              </div>
              <div
                class="analysis"
                v-if="isPractice"
              >
                <ul>
                  <li> <el-tag type="success">正确姿势：</el-tag><span class="right">{{topic[2][index].answer}}</span></li>
                  <li><el-tag>题目解析：</el-tag></li>
                  <li>{{topic[2][index].analysis == null ? '暂无解析': topic[2][index].analysis}}</li>
                </ul>
              </div>
            </div>
            <div
              class="judge"
              v-if="currentType == 3"
            >
              <el-radio-group
                v-model="judgeAnswer[index]"
                @change="getJudgeLabel"
                v-if="currentType == 3"
              >
                <el-radio :label="1">正确</el-radio>
                <el-radio :label="2">错误</el-radio>
              </el-radio-group>
              <div
                class="analysis"
                v-if="isPractice"
              >
                <ul>
                  <li> <el-tag type="success">正确姿势：</el-tag><span class="right">{{topic[3][index].answer}}</span></li>
                  <li><el-tag>题目解析：</el-tag></li>
                  <li>{{topic[3][index].analysis == null ? '暂无解析': topic[3][index].analysis}}</li>
                </ul>
              </div>
            </div>
          </div>
          <div class="operation">
            <ul class="end">
              <li @click="previous()"><i class="iconfont icon-previous"></i><span>上一题</span></li>
              <li @click="mark()"><i class="iconfont icon-mark-o"></i><span>标记</span></li>
              <li @click="next()"><span>下一题</span><i class="iconfont icon-next"></i></li>
            </ul>
          </div>
        </div>
      </transition>
    </div>
  </div>
</template>

<script>
import axios from "axios";
import { mapState } from "vuex";
export default {
  name: "Answer",
  data() {
    return {
      ImgFlag: false,
      mediaStreamTrack: {},
      video_stream: "", // 视频stream
      imgSrc: "", // 拍照图片
      canvas: null,
      context: null,
      startTime: null, //考试开始时间
      endTime: null, //考试结束时间
      time: null, //考试持续时间
      reduceAnswer: [], //vue官方不支持3层以上数据嵌套,如嵌套则会数据渲染出现问题,此变量直接接收3层嵌套时的数据。
      answerScore: 0, //答题总分数
      bg_flag: false, //已答标识符,已答改变背景色
      isFillClick: false, //选择题是否点击标识符
      slider_flag: true, //左侧显示隐藏标识符
      flag: false, //个人信息显示隐藏标识符
      currentType: 1, //当前题型类型  1--选择题  2--填空题  3--判断题
      radio: [], //保存考生所有选择题的选项
      title: "请选择正确的选项",
      index: 0, //全局index
      userInfo: {
        //用户信息
        name: null,
        id: null,
      },
      topicCount: [], //每种类型题目的总数
      score: [], //每种类型分数的总数
      examData: {
        //考试信息
        // source: null,
        // totalScore: null,
      },
      topic: {
        //试卷信息
      },
      showQuestion: [], //当前显示题目信息
      showAnswer: {}, //当前题目对应的答案选项
      number: 1, //题号
      part: null, //填空题的空格数量
      fillAnswer: [[]], //二维数组保存所有填空题答案
      judgeAnswer: [], //保存所有判断题答案
      topic1Answer: [], //学生选择题作答编号,
      rightAnswer: "",
      timer: 3,
    };
  },
  created() {
    this.getCookies();
    this.getExamData();
    this.showTime();
  },
  mounted() {
    this.getCamera();
    this.Pic = setInterval(() => {
      this.getImg();
    }, 50000);
  },
  methods: {
    // 调用打开摄像头功能
    getCamera() {
      // 获取 canvas 画布
      this.canvas = document.getElementById("canvasCamera");
      this.context = this.canvas.getContext("2d");
      // 旧版本浏览器可能根本不支持mediaDevices，我们首先设置一个空对象
      if (navigator.mediaDevices === undefined) {
        navigator.mediaDevices = {};
      }
      // 正常支持版本
      navigator.mediaDevices
        .getUserMedia({
          video: true,
        })
        .then((stream) => {
          // 摄像头开启成功
          this.mediaStreamTrack =
            typeof stream.stop === "function" ? stream : stream.getTracks()[0];
          this.video_stream = stream;
          this.$refs.video.srcObject = stream;
          this.$refs.video.play();
        })
        .catch((err) => {
          console.log(err);
        });
    },
    dataURLtoFile(dataurl, filename) {
      // 将 dataURL 转换为二进制数据
      var arr = dataurl.split(","),
        mime = arr[0].match(/:(.*?);/)[1],
        bstr = atob(arr[1]),
        n = bstr.length,
        u8arr = new Uint8Array(n);

      while (n--) {
        u8arr[n] = bstr.charCodeAt(n);
      }

      // 使用 Blob 构造函数创建一个 Blob 对象
      return new File([u8arr], filename, { type: mime });
    },
    // 获取图片
    getImg() {
      this.context.drawImage(this.$refs.video, 0, 0, 200, 100);
      // 获取图片base64链接
      const imageBase64 = this.canvas.toDataURL("image/png");
      this.imgSrc = imageBase64;
      // 转换为 File 对象
      // const file = this.dataURLtoFile(imageBase64, "image.png");
      let studyfile = JSON.parse(localStorage.getItem("studyfile")) || "";
      //  如果本地存储存在
      if (studyfile) {
        if (studyfile.local_studyfile.length >= 2) {
          studyfile.local_studyfile.splice(1, 1);
          localStorage.setItem(
            "studyfile",
            JSON.stringify({
              local_studyfile: [...studyfile.local_studyfile, this.imgSrc],
            })
          );
          // 发请求
          const arr =
            JSON.parse(localStorage.getItem("studyfile")).local_studyfile || "";
          let file1 = this.dataURLtoFile(arr[0], "img1");
          let file2 = this.dataURLtoFile(arr[1], "img2");
          const data = new FormData();
          data.append("img1", file1);
          data.append("img2", file2);
          axios({
            url: "/api/faceVerification",
            method: "post",
            data,
          }).then((res) => {
            if (res.data.data >= 0.6) {
              return;
            } else {
              this.$confirm(`检测到非本人答卷,系统将强制提交试卷`, "提示", {
                confirmButtonText: "确定",
                type: "error",
                showCancelButton: false,
                showClose: false,
              }).then(() => {
                this.$message({
                  type: "error",
                  message: "很遗憾您已被强制交卷!",
                });
              });
              setTimeout(() => {
                this.time = 0;
                this.commit();
              }, 2000);
            }
          });
        } else {
          localStorage.setItem(
            "studyfile",
            JSON.stringify({
              local_studyfile: [...studyfile.local_studyfile, this.imgSrc],
            })
          );
        }
      } else {
        localStorage.setItem(
          "studyfile",
          JSON.stringify({ local_studyfile: [this.imgSrc] })
        );
      }
    },
    // 释放媒体流
    stopCamera() {
      if (
        this.video_stream &&
        typeof this.video_stream.getTracks === "function"
      ) {
        this.video_stream.getTracks().forEach((track) => track.stop());
      }
    },
    getTime(date) {
      //日期格式化
      let year = date.getFullYear();
      let month =
        date.getMonth() + 1 < 10
          ? "0" + (date.getMonth() + 1)
          : date.getMonth() + 1;
      let day = date.getDate() < 10 ? "0" + date.getDate() : date.getDate();
      let hours =
        date.getHours() < 10 ? "0" + date.getHours() : date.getHours();
      let minutes =
        date.getMinutes() < 10 ? "0" + date.getMinutes() : date.getMinutes();
      let seconds =
        date.getSeconds() < 10 ? "0" + date.getSeconds() : date.getSeconds();
      // 拼接
      return (
        year +
        "-" +
        month +
        "-" +
        day +
        " " +
        hours +
        ":" +
        minutes +
        ":" +
        seconds
      );
    },
    getCookies() {
      //获取cookie
      this.userInfo.name = this.$cookies.get("cname");
      this.userInfo.id = this.$cookies.get("cid");
    },
    calcuScore() {
      //计算答题分数
    },
    getExamData() {
      //获取当前试卷所有信息
      let date = new Date();
      this.startTime = this.getTime(date);
      let examCode = this.$route.query.examCode; //获取路由传递过来的试卷编号
      this.$axios(`/api/exam/${examCode}`).then((res) => {
        //通过examCode请求试卷详细信息
        this.examData = { ...res.data.data }; //获取考试详情
        this.index = 0;
        this.time = this.examData.totalScore; //获取分钟数
        let paperId = this.examData.paperId;
        this.$axios(`/api/paper/${paperId}`).then((res) => {
          //通过paperId获取试题题目信息
          this.topic = { ...res.data };
          let reduceAnswer = this.topic[1][this.index];
          this.reduceAnswer = reduceAnswer;
          let keys = Object.keys(this.topic); //对象转数组
          keys.forEach((e) => {
            let data = this.topic[e];
            this.topicCount.push(data.length);
            let currentScore = 0;
            for (let i = 0; i < data.length; i++) {
              //循环每种题型,计算出总分
              currentScore += data[i].score;
            }
            this.score.push(currentScore); //把每种题型总分存入score
          });
          let len = this.topicCount[1];
          let father = [];
          for (let i = 0; i < len; i++) {
            //根据填空题数量创建二维空数组存放每道题答案
            let children = [null, null, null, null];
            father.push(children);
          }
          this.fillAnswer = father;
          let dataInit = this.topic[1];
          this.number = 1;
          this.showQuestion = dataInit[0].question;
          this.showAnswer = dataInit[0];
        });
      });
    },
    change(index) {
      //选择题
      this.index = index;
      let reduceAnswer = this.topic[1][this.index];
      this.reduceAnswer = reduceAnswer;
      this.isFillClick = true;
      this.currentType = 1;
      let len = this.topic[1].length;
      if (this.index < len) {
        if (this.index <= 0) {
          this.index = 0;
        }
        this.title = "请选择正确的选项";
        let Data = this.topic[1];
        // console.log(Data)
        this.showQuestion = Data[this.index].question; //获取题目信息
        this.showAnswer = Data[this.index];
        this.number = this.index + 1;
      } else if (this.index >= len) {
        this.index = 0;
        this.fill(this.index);
      }
    },
    fillBG() {
      //填空题已答题目 如果已答该题目,设置第四个元素为true为标识符
      if (this.fillAnswer[this.index][0] != null) {
        this.fillAnswer[this.index][3] = true;
      }
    },
    fill(index) {
      //填空题
      let len = this.topic[2].length;
      this.currentType = 2;
      this.index = index;
      if (index < len) {
        if (index < 0) {
          index = this.topic[1].length - 1;
          this.change(index);
        } else {
          console.log(`总长度${len}`);
          console.log(`当前index:${index}`);
          this.title = "请在横线处填写答案";
          let Data = this.topic[2];
          console.log(Data);
          this.showQuestion = Data[index].question; //获取题目信息
          let part = this.showQuestion.split("()").length - 1; //根据题目中括号的数量确定填空横线数量
          this.part = part;
          this.number = this.topicCount[0] + index + 1;
        }
      } else if (index >= len) {
        this.index = 0;
        this.judge(this.index);
      }
    },
    judge(index) {
      //判断题
      let len = this.topic[3].length;
      this.currentType = 3;
      this.index = index;
      if (this.index < len) {
        if (this.index < 0) {
          this.index = this.topic[2].length - 1;
          this.fill(this.index);
        } else {
          console.log(`总长度${len}`);
          console.log(`当前index:${this.index}`);
          this.title = "请作出正确判断";
          let Data = this.topic[3];
          console.log(Data);
          this.showQuestion = Data[index].question; //获取题目信息
          this.number = this.topicCount[0] + this.topicCount[1] + index + 1;
        }
      } else if (this.index >= len) {
        this.index = 0;
        this.change(this.index);
      }
    },
    getChangeLabel(val) {
      //获取选择题作答选项
      this.radio[this.index] = val; //当前选择的序号
      if (val) {
        let data = this.topic[1];
        this.bg_flag = true;
        data[this.index]["isClick"] = true;
      }
      /* 保存学生答题选项 */
      this.topic1Answer[this.index] = val;
    },
    getJudgeLabel(val) {
      //获取判断题作答选项
      this.judgeAnswer[this.index] = val;
      if (val) {
        let data = this.topic[3];
        this.bg_flag = true;
        data[this.index]["isClick"] = true;
      }
    },
    previous() {
      //上一题
      this.index--;
      switch (this.currentType) {
        case 1:
          this.change(this.index);
          break;
        case 2:
          this.fill(this.index);
          break;
        case 3:
          this.judge(this.index);
          break;
      }
    },
    next() {
      //下一题
      this.index++;
      switch (this.currentType) {
        case 1:
          this.change(this.index);
          break;
        case 2:
          this.fill(this.index);
          break;
        case 3:
          this.judge(this.index);
          break;
      }
    },
    mark() {
      //标记功能
      switch (this.currentType) {
        case 1:
          this.topic[1][this.index]["isMark"] = true; //选择题标记
          break;
        case 2:
          this.topic[2][this.index]["isMark"] = true; //填空题标记
          break;
        case 3:
          this.topic[3][this.index]["isMark"] = true; //判断题标记
      }
    },
    commit() {
      //答案提交计算分数
      /* 计算选择题总分 */
      localStorage.setItem("keepalive", 2);
      let topic1Answer = this.topic1Answer;
      let finalScore = 0;
      topic1Answer.forEach((element, index) => {
        //循环每道选择题根据选项计算分数
        let right = null;
        if (element != null) {
          switch (
            element //选项1,2,3,4 转换为 "A","B","C","D"
          ) {
            case 1:
              right = "A";
              break;
            case 2:
              right = "B";
              break;
            case 3:
              right = "C";
              break;
            case 4:
              right = "D";
          }
          if (right == this.topic[1][index].rightAnswer) {
            // 当前选项与正确答案对比
            finalScore += this.topic[1][index].score; // 计算总分数
          }
          console.log(right, this.topic[1][index].rightAnswer);
        }
        // console.log(topic1Answer)
      });
      /**计算判断题总分 */
      // console.log(`this.fillAnswer${this.fillAnswer}`)
      // console.log(this.topic[2][this.index])
      let fillAnswer = this.fillAnswer;
      fillAnswer.forEach((element, index) => {
        //此处index和 this.index数据不一致，注意
        element.forEach((inner) => {
          if (this.topic[2][index].answer.includes(inner)) {
            //判断填空答案是否与数据库一致
            console.log("正确");
            finalScore += this.topic[2][this.index].score;
          }
        });
      });
      /** 计算判断题总分 */
      let topic3Answer = this.judgeAnswer;
      topic3Answer.forEach((element, index) => {
        let right = null;
        switch (element) {
          case 1:
            right = "T";
            break;
          case 2:
            right = "F";
        }
        if (right == this.topic[3][index].answer) {
          // 当前选项与正确答案对比
          finalScore += this.topic[3][index].score; // 计算总分数
        }
      });
      console.log(`目前总分${finalScore}`);
      let date = new Date();
      this.endTime = this.getTime(date);
      let answerDate = this.endTime.substr(0, 10);
      //提交成绩信息
      this.$axios({
        url: "/api/score",
        method: "post",
        data: {
          examCode: this.examData.examCode, //考试编号
          studentId: this.userInfo.id, //学号
          subject: this.examData.source, //课程名称
          etScore: finalScore, //答题成绩
          answerDate: answerDate, //答题日期
        },
      }).then((res) => {
        if (res.data.code == 200) {
          this.$router.replace({
            path: "/studentScore",
            query: {
              score: finalScore,
              startTime: this.startTime,
              endTime: this.endTime,
            },
          });
        }
      });
    },
    showTime() {
      //倒计时
      setInterval(() => {
        this.time -= 1;
        if (this.time == 10) {
          this.$message({
            showClose: true,
            type: "error",
            message: "考生注意,考试时间还剩10分钟！！！",
          });
          if (this.time == 0) {
            console.log("考试时间已到,强制交卷。");
          }
        }
      }, 1000 * 60);
    },
  },
  computed: mapState(["isPractice"]),
  beforeDestroy() {
    clearInterval(this.Pic);
    this.Pic = null;
    localStorage.removeItem("studyfile");
    this.stopCamera();
  },
};
</script>

<style lang="less" scoped>
.top {
  position: relative;
}
.iconfont.icon-time {
  color: #2776df;
  margin: 0px 6px 0px 20px;
}
.analysis {
  margin-top: 20px;
  .right {
    color: #2776df;
    font-size: 18px;
    border: 1px solid #2776df;
    padding: 0px 6px;
    border-radius: 4px;
    margin-left: 20px;
  }
  ul li:nth-child(2) {
    margin: 20px 0px;
  }
  ul li:nth-child(3) {
    padding: 10px;
    background-color: #d3c6c9;
    border-radius: 4px;
  }
}
.analysis span:nth-child(1) {
  font-size: 18px;
}
.mark {
  position: absolute;
  width: 4px;
  height: 4px;
  content: "";
  background-color: red;
  border-radius: 50%;
  top: 0px;
  left: 22px;
}
.border {
  position: relative;
  border: 1px solid #ff90aa !important;
}
.bg {
  background-color: #5188b8 !important;
}
.fill .el-input {
  display: inline-flex;
  width: 150px;
  margin-left: 20px;
  .el-input__inner {
    border: 1px solid transparent;
    border-bottom: 1px solid #eee;
    padding-left: 20px;
  }
}
/* slider过渡效果 */
.slider-fade-enter-active {
  transition: all 0.3s ease;
}
.slider-fade-leave-active {
  transition: all 0.3s cubic-bezier(1, 0.5, 0.8, 1);
}
.slider-fade-enter,
.slider-fade-leave-to {
  transform: translateX(-100px);
  opacity: 0;
}

.operation .end li:nth-child(2) {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background-color: rgb(39, 118, 223);
  border-radius: 50%;
  width: 50px;
  height: 50px;
  color: #fff;
}
.operation .end li {
  cursor: pointer;
  margin: 0 100px;
}
.operation {
  background-color: #fff;
  border-radius: 4px;
  padding: 10px 0px;
  margin-right: 10px;
}
.operation .end {
  display: flex;
  justify-content: center;
  align-items: center;
  color: rgb(39, 118, 223);
}
.content .number {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 20px;
  height: 20px;
  background-color: rgb(39, 118, 223);
  border-radius: 4px;
  margin-right: 4px;
}
.content {
  padding: 0px 20px;
}
.content .topic {
  padding: 20px 0px;
  padding-top: 30px;
}
.right{
  height: 100%;
}
.right .content {
  background-color: #fff;
  margin: 10px;
  margin-left: 0px;
  height: 85%;
}
.content .el-radio-group label {
  color: #000;
  margin: 5px 0px;
}
.content .el-radio-group {
  display: flex;
  flex-direction: column;
}
.right .title p {
  margin-left: 20px;
}
.flexarea {
  display: flex;
}
.flexarea .right {
  flex: 1;
}
.auto-right {
  margin-left: auto;
  color: #2776df;
  margin-right: 10px;
}
.right .title {
  margin-right: 10px;
  padding-right: 30px;
  display: flex;
  margin-top: 10px;
  background-color: #fff;
  height: 50px;
  line-height: 50px;
}
.clearfix {
  clear: both;
}
.l-bottom .final {
  position: sticky;
  left: 0;
  bottom: 10px;
  cursor: pointer;
  display: inline-block;
  text-align: center;
  background-color: rgb(39, 118, 223);
  width: 240px;
  margin: 20px 0px 20px 10px;
  border-radius: 4px;
  height: 30px;
  line-height: 30px;
  color: #fff;
  margin-top: 22px;
}
#answer .left .item {
  padding: 0px;
  font-size: 16px;
}
.l-bottom {
  height: 100%;
  border-radius: 4px;
  background-color: #fff;
}
.l-bottom .item p {
  margin-bottom: 15px;
  margin-top: 10px;
  color: #000;
  margin-left: 10px;
  letter-spacing: 2px;
}
.l-bottom .item li {
  width: 15%;
  margin-left: 5px;
  margin-bottom: 10px;
}
.l-bottom .item {
  display: flex;
  flex-direction: column;
}
.l-bottom .item ul {
  width: 100%;
  margin-bottom: -8px;
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
}
.l-bottom .item ul li a {
  position: relative;
  justify-content: center;
  display: inline-flex;
  align-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background-color: #fff;
  border: 1px solid #eee;
  text-align: center;
  color: #000;
  font-size: 16px;
}
.left .l-top {
  display: flex;
  height: 77px;
  justify-content: space-around;
  padding: 16px 0px;
  border: 1px solid #eee;
  border-radius: 4px;
  margin-bottom: 10px;
  background-color: #fff;
}
.flexarea{
  height: 100%;
}
#answer{
  height: 90%;
}
.left {
  width: 260px;
  height: 100%;
  margin: 10px 10px 0px 10px;
}
.left .l-top li:nth-child(2) a {
  border: 1px solid #eee;
}
.left .l-top li:nth-child(3) a {
  background-color: #5188b8;
  border: none;
}
.left .l-top li:nth-child(4) a {
  position: relative;
  border: 1px solid #eee;
}
.left .l-top li:nth-child(4) a::before {
  width: 4px;
  height: 4px;
  content: " ";
  position: absolute;
  background-color: red;
  border-radius: 50%;
  top: 0px;
  left: 16px;
}
.left .l-top li {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}
.left .l-top li a {
  display: inline-block;
  padding: 10px;
  border-radius: 50%;
  background-color: #fff;
  border: 1px solid #ff90aa;
}
#answer .top {
  background-color: rgb(39, 118, 223);
}
#answer .item {
  color: #fff;
  display: flex;
  padding: 20px;
  font-size: 20px;
}
#answer .top .item li:nth-child(1) {
  margin-right: 10px;
}
#answer .top .item li:nth-child(3) {
  position: relative;
  margin-left: auto;
}
#answer {
  padding-bottom: 30px;
}
.icon20 {
  font-size: 20px;
  font-weight: bold;
}
.item .msg {
  padding: 10px 15px;
  border-radius: 4px;
  top: 47px;
  right: -30px;
  color: #6c757d;
  position: absolute;
  border: 1px solid rgba(0, 0, 0, 0.15);
  background-color: #fff;
}
.item .msg p {
  font-size: 16px;
  width: 200px;
  text-align: left;
}
.publish {
  position: absolute;
  width: 150px;
  height: 200px;
  right: 20px;
  top: -28px;
  bottom: 20px;
  video {
    width: 100%;
    height: 300px;
  }
  canvas {
    width: 100%;
    height: 300px;
  }
  button {
    width: 100px;
    height: 40px;
    position: relative;
    bottom: 0;
    left: 0;
    background-color: rgb(22, 204, 195);
  }
  .img_bg_camera {
    img {
      width: 300px;
      height: 200px;
    }
  }
}
</style>
